Table 2.
Countertop | Organism | CFU/ Recovered from control samples* | Lot | CFU recovered from test samples | % reduction ** |
---|---|---|---|---|---|
Test 1 |
S. aureus |
7.5 × 105 |
1 |
<1;<1;5;<1;<1 |
>99.9 |
2 |
18;<1;11;<1;22 |
>99.9 |
|||
3 |
<1;<1;<1;<1;<1 |
>99.9 |
|||
E. aerogenes |
7.9 × 106 |
1 |
1200;790;50;1200;<1 |
>99.9 |
|
2 |
760;840;1200;800;620 |
>99.9 |
|||
3 |
<1;620;<1;500;<1 |
>99.9 |
|||
MRSA |
8.5 × 105 |
1 |
<1;<1;<1;<1;<1 |
>99.9 |
|
2 |
<1;<1;<1;<1;<1 |
>99.9 |
|||
P. aeruginosa |
7 × 106 |
1 |
90;580;<1;50;160 |
>99.9 |
|
2 |
440;<1;400;<1;<1 |
>99.9 |
|||
E. coli 0157:H7 |
6.6 × 106 |
1 |
470;690;450;480;380 |
>99.9 |
|
2 |
560;360;320;390;360 |
>99.9 |
|||
Test 2 |
S. aureus |
7.5 × 105 |
1 |
<1;50;<1;80;<1 |
>99.9 |
2 |
280;<1;70;<1;<1 |
>99.9 |
|||
3 |
<1;<1;<1;<1;<1 |
>99.9 |
|||
E. aerogenes |
7.9 × 106 |
1 |
70;540;140;650;120 |
>99.9 |
|
2 |
240;750;240;460;410 |
>99.9 |
|||
3 |
770;610;410;230;450 |
>99.9 |
|||
MRSA |
8.5 × 105 |
1 |
<1;<1;<1;<1;<1 |
>99.9 |
|
2 |
<1;<1;<1;<1;<1 |
>99.9 |
|||
P. aeruginosa |
7.0 × 106 |
1 |
820;740;600;880;890 |
>99.9 |
|
2 |
930;840;730;870;990 |
>99.9 |
|||
E. coli 0157:H7 | 6.6 × 106 | 1 |
640;720;300;700;700 |
>99.9 |
|
2 | 660;540;490;760;300 | >99.9 |
*Values taken from Table 1.
**Compared to control, each number represents an average of 5 replicates per manufacturing lot. Either 2 or 3 lots were examined per organism.